規格
| 屬性 | 價值 |
| Package / Case | Tray |
| Series | megaAVR® 0, Functional Safety (FuSa) |
| Part Status | Active |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Number of I/O | 27 |
| Program Memory Size | 8KB (8K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 1K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 12x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The ATmega808-AU is an 8-bit microcontroller from Microchip’s AVR family, based on the AVR® enhanced RISC architecture. It features 8KB Flash memory, 1KB SRAM, and 512B EEPROM, making it suitable for embedded applications.
Key highlights:
- Clock speed: Up to 20MHz.
- Peripherals: 12-bit ADC, USART, SPI, I²C, and multiple timers.
- GPIO: 28 programmable I/O pins.
- Low-power modes: Ideal for battery-operated devices.
- Package: 32-pin TQFP (AU suffix).
It supports Core Independent Peripherals (CIPs), reducing CPU load, and is programmable via UPDI (Unified Program and Debug Interface). The ATmega808-AU is commonly used in automation, IoT, and consumer electronics.
For development, Microchip provides MPLAB® X IDE and Atmel Studio support. Its balance of performance, power efficiency, and integration makes it a versatile choice for cost-sensitive designs.
Key highlights:
- Clock speed: Up to 20MHz.
- Peripherals: 12-bit ADC, USART, SPI, I²C, and multiple timers.
- GPIO: 28 programmable I/O pins.
- Low-power modes: Ideal for battery-operated devices.
- Package: 32-pin TQFP (AU suffix).
It supports Core Independent Peripherals (CIPs), reducing CPU load, and is programmable via UPDI (Unified Program and Debug Interface). The ATmega808-AU is commonly used in automation, IoT, and consumer electronics.
For development, Microchip provides MPLAB® X IDE and Atmel Studio support. Its balance of performance, power efficiency, and integration makes it a versatile choice for cost-sensitive designs.
Equivalent
Equivalent products to the ATMEGA808-AU include:
- ATMEGA808-MU (QFN package variant).
- ATMEGA809-AU (similar specs, more flash).
- ATMEGA1608/1609 (higher memory variants).
- ATTINY817 (lower-cost alternative, fewer features).
These are pin-compatible or functionally similar alternatives within Microchip's 8-bit AVR lineup. For exact replacements, verify datasheets for specific requirements.
- ATMEGA808-MU (QFN package variant).
- ATMEGA809-AU (similar specs, more flash).
- ATMEGA1608/1609 (higher memory variants).
- ATTINY817 (lower-cost alternative, fewer features).
These are pin-compatible or functionally similar alternatives within Microchip's 8-bit AVR lineup. For exact replacements, verify datasheets for specific requirements.
Application
The ATMEGA808-AU is a versatile 8-bit microcontroller from Microchip, commonly used in:
- Embedded Systems: IoT devices, sensors, and automation.
- Consumer Electronics: Smart home gadgets, remote controls.
- Industrial Control: Motor control, monitoring systems.
- Automotive: Basic control units, lighting systems.
- DIY & Hobby Projects: Arduino-compatible applications.
It features 8KB Flash, 1KB SRAM, 12 I/O pins, and supports UART, SPI, I²C, making it suitable for cost-sensitive, low-power applications.
- Embedded Systems: IoT devices, sensors, and automation.
- Consumer Electronics: Smart home gadgets, remote controls.
- Industrial Control: Motor control, monitoring systems.
- Automotive: Basic control units, lighting systems.
- DIY & Hobby Projects: Arduino-compatible applications.
It features 8KB Flash, 1KB SRAM, 12 I/O pins, and supports UART, SPI, I²C, making it suitable for cost-sensitive, low-power applications.
Package
The ATMEGA808-AU comes in a TQFP-32 package. This is a 32-pin Thin Quad Flat Package with a 7x7mm body size and 0.8mm pin pitch, suitable for surface-mount applications. It provides a compact footprint while maintaining good thermal and electrical performance.
